DB Object deleting

[leonimas]

Hi to all,

I need to mask the normal delete command of a db entity; my problem is:

the user select a db object, press the "canc" key and my arx code resolves

the deleting action ...

If some constraints are true the code delete the object, otherwise not, the

erase command will not work.

Please, how can I solve this problem ? Reactors ? Which event (erased,

unappended, ... )

Best regards

Leonard

[Anodl]

Hi Leonard,

override AcDbObject::subErase (or use AcDbObjectOverrule::erase) to intercept the erase procedure and to prevent the object form being erased, if necessary.

Arnold

[leonimas]

Hi Arnold,

your solution is only valid to custom class derived from AcDbObject and/or

AcDbEntity ? If I use native class such as AcDbBlockReference or AcDbPolyLine ?

Many Thanks

Leonard

[Anodl]

Leonard, for native ARX classes or other third party classes use AcDbObjectOverrule::erase, for your own classes you can override AcDbObject::subErase. HTH Arnold

[leonimas]

Hi Anodl,

there is an example how to use the AcDbObjectOverrule class ? Must I derive

a my class from it ? where I have to instantiate the erase method (inside

ObjectARX EntryPoint class) ?

Many Thanks

Leonard